/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.impl;
import java.io.File;
import java.util.EventObject;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.apache.camel.CamelContext;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.management.event.RouteAddedEvent;
import org.apache.camel.support.EventNotifierSupport;
import org.apache.camel.util.FileUtil;
public class FileWatcherReloadStrategyTest extends ContextTestSupport {
private FileWatcherReloadStrategy reloadStrategy;
@Override
public boolean isUseRouteBuilder() {
return false;
}
@Override
protected CamelContext createCamelContext() throws Exception {
CamelContext context = super.createCamelContext();
reloadStrategy = new FileWatcherReloadStrategy();
reloadStrategy.setFolder("target/dummy");
context.setReloadStrategy(reloadStrategy);
return context;
}
public void testAddNewRoute() throws Exception {
deleteDirectory("target/dummy");
createDirectory("target/dummy");
context.start();
// there are 0 routes to begin with
assertEquals(0, context.getRoutes().size());
Thread.sleep(1000);
log.info("Copying file to target/dummy");
// create an xml file with some routes
FileUtil.copyFile(new File("src/test/resources/org/apache/camel/model/barRoute.xml"), new File("target/dummy/barRoute.xml"));
// wait for that file to be processed
// (is slow on osx, so wait up till 20 seconds)
for (int i = 0; i < 20; i++) {
if (context.getRoutes().size() > 0) {
break;
}
Thread.sleep(1000);
}
assertEquals(1, context.getRoutes().size());
// and the route should work
Thread.sleep(1000);
getMockEndpoint("mock:bar").expectedMessageCount(1);
template.sendBody("direct:bar", "Hello World");
assertMockEndpointsSatisfied();
}
public void testUpdateExistingRoute() throws Exception {
deleteDirectory("target/dummy");
createDirectory("target/dummy");
// the bar route is added two times, at first, and then when updated
final CountDownLatch latch = new CountDownLatch(2);
context.getManagementStrategy().addEventNotifier(new EventNotifierSupport() {
@Override
public void notify(EventObject event) throws Exception {
latch.countDown();
}
@Override
public boolean isEnabled(EventObject event) {
return event instanceof RouteAddedEvent;
}
});
context.addRoutes(new RouteBuilder() {
@Override
public void configure() throws Exception {
from("direct:bar").routeId("bar").to("mock:foo");
}
});
context.start();
assertEquals(1, context.getRoutes().size());
// and the route should work sending to mock:foo
getMockEndpoint("mock:bar").expectedMessageCount(0);
getMockEndpoint("mock:foo").expectedMessageCount(1);
template.sendBody("direct:bar", "Hello World");
assertMockEndpointsSatisfied();
resetMocks();
Thread.sleep(1000);
log.info("Copying file to target/dummy");
// create an xml file with some routes
FileUtil.copyFile(new File("src/test/resources/org/apache/camel/model/barRoute.xml"), new File("target/dummy/barRoute.xml"));
// wait for that file to be processed and remove/add the route
// (is slow on osx, so wait up till 20 seconds)
boolean done = latch.await(20, TimeUnit.SECONDS);
assertTrue("Should reload file within 20 seconds", done);
// and the route should be changed to route to mock:bar instead of mock:foo
Thread.sleep(1000);
getMockEndpoint("mock:bar").expectedMessageCount(1);
getMockEndpoint("mock:foo").expectedMessageCount(0);
template.sendBody("direct:bar", "Bye World");
assertMockEndpointsSatisfied();
}
public void testUpdateXmlRoute() throws Exception {
deleteDirectory("target/dummy");
createDirectory("target/dummy");
// the bar route is added two times, at first, and then when updated
final CountDownLatch latch = new CountDownLatch(2);
context.getManagementStrategy().addEventNotifier(new EventNotifierSupport() {
@Override
public void notify(EventObject event) throws Exception {
latch.countDown();
}
@Override
public boolean isEnabled(EventObject event) {
return event instanceof RouteAddedEvent;
}
});
context.start();
// there are 0 routes to begin with
assertEquals(0, context.getRoutes().size());
Thread.sleep(1000);
log.info("Copying file to target/dummy");
// create an xml file with some routes
FileUtil.copyFile(new File("src/test/resources/org/apache/camel/model/barRoute.xml"), new File("target/dummy/barRoute.xml"));
// wait for that file to be processed
// (is slow on osx, so wait up till 20 seconds)
for (int i = 0; i < 20; i++) {
if (context.getRoutes().size() > 0) {
break;
}
Thread.sleep(1000);
}
assertEquals(1, context.getRoutes().size());
// and the route should work
getMockEndpoint("mock:bar").expectedMessageCount(1);
template.sendBody("direct:bar", "Hello World");
assertMockEndpointsSatisfied();
resetMocks();
// now update the file
log.info("Updating file in target/dummy");
// create an xml file with some routes
FileUtil.copyFile(new File("src/test/resources/org/apache/camel/model/barUpdatedRoute.xml"), new File("target/dummy/barRoute.xml"));
// wait for that file to be processed and remove/add the route
// (is slow on osx, so wait up till 20 seconds)
boolean done = latch.await(20, TimeUnit.SECONDS);
assertTrue("Should reload file within 20 seconds", done);
// and the route should work with the update
Thread.sleep(1000);
getMockEndpoint("mock:bar").expectedBodiesReceived("Bye Camel");
template.sendBody("direct:bar", "Camel");
assertMockEndpointsSatisfied();
}
}